Spherical Li4 Ti5 O12 /S Composite Material as Positive Active Material for High Electrochemical Performance Lithium-Ion Battery

2018 ◽  
Vol 6 (10) ◽  
pp. 1894-1898 ◽  
Author(s):  
Xiaoshi Lang ◽  
Ying Liu ◽  
Kedi Cai ◽  
Lan Li ◽  
Qingguo Zhang ◽  
...  
Keyword(s):  
Composite Material ◽  
Electrochemical Performance ◽  
Lithium Ion Battery ◽  
Active Material ◽  
Lithium Ion ◽  
Positive Active Material

Electrochemical performance of SnO 2 /modified graphite composite material as anode of lithium ion battery

2015 ◽  
Vol 167 ◽  
pp. 303-308 ◽  
Author(s):  
Hong-Qiang Wang ◽  
Guan-Hua Yang ◽  
You-Guo Huang ◽  
Xiao-Hui Zhang ◽  
Zhi-Xiong Yan ◽  
...  
Keyword(s):  
Composite Material ◽  
Electrochemical Performance ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Graphite Composite

scholarly journals Characterization of Sn4P3–Carbon Composite Films for Lithium-Ion Battery Anode Fabricated by Aerosol Deposition

Nanomaterials ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 1032 ◽  
Author(s):  
Toki Moritaka ◽  
Yuh Yamashita ◽  
Tomohiro Tojo ◽  
Ryoji Inada ◽  
Yoji Sakurai
Keyword(s):  
Electrochemical Performance ◽  
Composite Film ◽  
Lithium Ion Battery ◽  
Active Material ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Aerosol Deposition ◽  
Raw Material ◽  
Composite Powders ◽  
Battery Anode

We fabricated tin phosphide–carbon (Sn4P3/C) composite film by aerosol deposition (AD) and investigated its electrochemical performance for a lithium-ion battery anode. Sn4P3/C composite powders prepared by a ball milling was used as raw material and deposited onto a stainless steel substrate to form the composite film via impact consolidation. The Sn4P3/C composite film fabricated by AD showed much better electrochemical performance than the Sn4P3 film without complexing carbon. Although both films showed initial discharge (Li+ extraction) capacities of approximately 1000 mAh g−1, Sn4P3/C films retained higher reversible capacity above 700 mAh g−1 after 100 cycles of charge and discharge processes while the capacity of Sn4P3 film rapidly degraded with cycling. In addition, by controlling the potential window in galvanostatic testing, Sn4P3/C composite film retained the reversible capacity of 380 mAh g−1 even after 400 cycles. The complexed carbon works not only as a buffer to suppress the collapse of electrodes by large volume change of Sn4P3 in charge and discharge reactions but also as an electronic conduction path among the atomized active material particles in the film.

scholarly journals Selection of Optimum Binder for Silicon Powder Anode in Lithium-Ion Batteries Based on the Impact of Its Molecular Structure on Charge–Discharge Behavior

Coatings ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 732
Author(s):  
Shimoi ◽  
Komatsu ◽  
Tanaka
Keyword(s):  
Composite Material ◽  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Active Material ◽  
Lithium Ion ◽  
Silicon Powder ◽  
Discharge Characteristics ◽  
The Impact ◽  
Charge Discharge ◽  
Silicon Particles

The high-capacity and optimal cycle characteristics of the silicon powder anode render it essential in lithium-ion batteries. The authors attempted to obtain a composite material by coating individual silicon particles of µm-order diameter with conductive carbon additive and resin to serve as a binder of an anode in a lithium-ion battery and thus improve its charge–discharge characteristics. Structural strain and hardness due to stress on the binder resin were alleviated by the adhesion between silicon or copper foil as a collector and the binder resin, preventing the systematic deterioration of the anode composite matrix immersed in electrolyte compositions including Li salt and fluoride. Moreover, the binder resin itself was confirmed to play a role of active material with occlusion and release of Li-ion. Furthermore, charge–discharge characteristics of the silicon powder anode active material strongly depend on the type of binder resin used; therefore, the binder resin used as composite material in rechargeable batteries should be carefully selected. Some resins for binding silicon particles were investigated for their mechanical and electrochemical properties, and a carbonized polyimide obtained a good charge–discharge cyclic property in a lithium-ion battery.

Solvothermal-assisted assembly of MoS2 nanocages on graphene sheets to enhance the electrochemical performance of lithium-ion battery

Nano Research ◽  
2020 ◽  
Vol 13 (4) ◽  
pp. 1029-1034
Author(s):  
Dafang He ◽  
Yi Yang ◽  
Zhenmin Liu ◽  
Jin Shao ◽  
Jian Wu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Graphene Sheets

Electrochemical performance and electronic properties of shell LiNi0.5Mn1.5O4 hollow spheres for lithium ion battery

2016 ◽  
Vol 09 (02) ◽  
pp. 1650027 ◽  
Author(s):  
Yongli Cui ◽  
Jiali Wang ◽  
Mingzhen Wang ◽  
Quanchao Zhuang
Keyword(s):  
Activation Energy ◽  
Electrochemical Performance ◽  
Electronic Properties ◽  
Lithium Ion Battery ◽  
Retention Rate ◽  
Hollow Spheres ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Hollow Microspheres ◽  
Cycle Stability

Shell spinel LiNi[Formula: see text]Mn[Formula: see text]O4 hollow microspheres were successfully synthesized by MnCO3 template, and characterized by XRD, SEM, and TEM. The results show that the hollow LiNi[Formula: see text]Mn[Formula: see text]O4 cathode has good cycle stability to reach 124.5, 119.8, and 96.6[Formula: see text]mAh/g at 0.5, 1, and 5 C, the corresponding retention rate of 98.1%, 98.2%, and 98.0% after 50 cycles at 20[Formula: see text]C, and the reversible capacity of 94.6[Formula: see text]mAh/g can be obtained at 1 C rate at 55[Formula: see text]C, 83.3% retention after 100 cycles. As the temperature decreases from 10[Formula: see text]C to [Formula: see text]C, the resistance of [Formula: see text] increases from 5.5 [Formula: see text] to 135 [Formula: see text], [Formula: see text] from 27 [Formula: see text] to 353.2 [Formula: see text], and [Formula: see text] from 12.7 [Formula: see text] to 73.0 [Formula: see text]. Moreover, the B constant and [Formula: see text] activation energy are 4480[Formula: see text]K and 37.22[Formula: see text]KJ/mol for the NTC spinel material, respectively.

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